How will Syphony Worlds work?

Hi I’ve been hyped for this game for quite some time now cause the trailer looked really cool.
But recently I started thinking how the game would work with such an amount of mechanics and big open worlds for songs that are like 2 to 3 minutes.

I hope development is going well.

I herd that I will repeat songs until the level is done! but they may of changed by now…who knows!